Azbil MagneW Two-wire PLUS+ MTG15A, User Manual

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2-33
2. Use this method to install the detector along with a protective plate to prevent PVC pipe
from being deformed or damaged when the bolts are tightened to the specified torque.
Insert a protective plate between the outer side of the PVC flange and the detector as shown
in Fig. 2-30. The protective plate protects the PVC pipe from deformation or damage when
it is secured to the specified torque. For the appropriate torque, see Table. 2-5 on page 2-24.
Lining
Grounding ring PTFE gasket
(supplied)
Protective plate
Fig. 2-30. Detector installation using Non-SUS material grounding ring
(with protective plate)
3. Use this method to install the detector using a low fastening torque and rubber gaskets.
First, remove the grounding ring from the detector, then insert a rubber gasket with a
thickness of 0.5 to 1.0 mm. Then reinsert the grounding ring on top of the rubber gasket.
Next, remove the PTFE gasket and insert a rubber gasket 3.0 to 4.0 mm thick to replace
it. Under these conditions, install the detector on the pipe as shown in Fig. 2-31. Tighten
the bolts to the torque required to achieve a fluid seal for the rubber gasket. In this case,
the two kinds of rubber gaskets that are used should be made of the same material. For the
dimensions of the rubber gaskets, refer to Table. 2-3 and Table. 2-4 on page 2-12.
Lining
Rubber
gasket
(0.5 - 1 mm) Grounding ring
Rubber gasket
(3 - 4 mm)
Fig. 2-31. Detector installation using Non-SUS material grounding ring
(with rubber gasket)